Whenever I take a new shooter to the range I give them a gun safety talk.
That covers all the basics, and stresses the fact that you only point the gun at things you intend to destroy, and to treat every gun as if its loaded.
This guy either didn’t get, or ignored those instructions, and his buddy is just lucky the range master saw what was happening and immediately took action.
The range master’s quick action could have saved a life, and the fact that he immediately removes the shooter at the end deserves applause. Respect gun safety or you don’t belong at the range.